Taryn Guariglia, an unassuming but relentless Internal Revenue Service (IRS) special agent, led the complex investigation that resulted in the indictment, guilty plea and 50-year prison sentence of South Florida lawyer Scott Rothstein, the flamboyant mastermind of a Ponzi scheme that fleeced investors of an estimated $1.2 billion.

Within days after Rothstein fled to Morocco on a private jet in 2009 , just as his massive swindle was unraveling, Guariglia worked closely with prosecutors and a team of IRS and FBI agents to quickly amass the necessary evidence to charge Rothstein with racketeering, money laundering, and mail and wire fraud. Keep reading →